Improvement in heating-stoves



ings, which form a UNITED STATES PATENT OFFICE.

CHARLES J. PRATT, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN HEATlNG-STOVES.

Specification forming part of Letters Patent BIO-147,789, datedFebruary-2 4, 1874; application filed October 28, 1873.

To all whom it may concern:

Be it known that I, CHARLES J. PRATT, of the city and county ofWorcester and Commonwealth of Massachusetts, have invented certain newand useful Improvements in Stoves for domestic and other purposes; and Ido hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawpart of this specification, and in which- Figure 1 represents a side"iew of the improved stove. Fig. 2 represents a front View. Fig. 3represents a vertical and longitudinal central section on line A B, Fig.4; and Fig. 4 represents a top or plan view of the same.

To enable those skilled in the art to whichmy invention belongs to makeand use the same, I will proceed to describe it in detail.

By reference to Fig. 3 of the drawings, it will be seen that the stoveis made in three sections, the first section, A, forming the ash pit orchamber a, above which chamber a is supported the movable fire-grate I),the journals c of the movable fire-grate resting in curved slots in theside flanges cl, which project up from the flanged part A, which restsupon the top of the section A, as fully indicated in the drawings. Theform of the entire grate is shown in dotted lines, Fig. 2, every otherbar of the movable grate being longer than the others. From the insideof the flanged part of A project short, rigid, and stationary grate-bars0, corresponding to and on a line with the short movable grate-bars,while the long movable grate-bars work between the short stationarygrate-bars. The movable grate-bars are operated, when desired, by meansof a crank-pin, f, inserted in one of the journals, 0, as indicated inthedrawin gs. The section B, forming the fire-chamber g, rests upon aflange, h, and inside of shoulders 1 upon the upper side of the flangedpart A, curved slots being cut out of the lower sides of the part B tofit the journals 0, as indicated in the drawings. Upon the upper edge ofthe part B is arranged aflange-piece, D, and upon that rests the section0, which forms the hotair chamber j above the fire-chamber g,- and uponthe top of section G is arranged the top flange-piece E, provided withan opening, it,

to receive a'kettle or other implement for do= mestic use, and when notused for such pur-- pose, it may be closed with an ordinary iron cover.F is the smoke=flue, the lower part of which communicates with thefirechamber g and hotair chamber j, the opening being closed, in thisinstance, by means of three dampers or slide-valves, m, whereby thedraft can'be regulated very conveniently and perfectly. The dampers workindependently of each other in the bottom of the projecting part 0 ofsection 0, and which projecting part 6) is divided into three divisions,corresponding with the dampers m. Section A rests upon and is bolted toa base-piece, B, to the under side of which are fastenedsupporting-legs 1. The base-piece B is so constructed as to form anextension of the ash-pit a. The bottom G of the ash-pit is constructedupon an incline, as shown in Fig. 3, and has an opening, a, closed by aslide-damper, H, which is arranged in a slot of a projecting part of thebase-piece B. The front of the section A has a rectangular opening, inwhich a damper, I, in connection with the adjacent parts, is fitted towork as follows: First, the damper I itself is a rectangular pieceprovided with a handle, I and end pieces 0, the lower edges of which arenotched or serrated to catch on the flange 2 of section piece A, whiletheir upper edges are slotted out to catch the upper and downwardlyprojecting flange 3 of the same section piece, so as to admit of itsbeing worked or adjusted in and out to regulate the draft, and that toowithout screw or bolt to hold the damper in place. The damper I is alsoadapted to work quite as well with the serrated edges up, the slottedpart catching on the lower flange of the section piece A.

As will readily be seen, the stove is simple in design, of regularpattern, and adapted for the use of fuel in an economical manner, theconstruction of the stove being such as to present a largeheating-surface, while the magazine 0r reservoir for coal is of suchextent compared with the size of the stove, that a corn tinual supply ofheat may be generated from a limited quantity of coal withoutreplenishing the supply for a considerable length of time.

This stove is adapted for heating large as well as small rooms, and itis not liable to derangement by use, and can be made of any desiredsize. Then, again, it will be seen that the stove being made insections, it can be readily taken apart for storage or shipi'nent orremoval from one room to another, and in case one section happens to getbroken in any way,

or injured by use,.it can beeasily removed and a new section substitutedwith very little trouble.

The stove is well adapted for laundry purposes, since flat-irons can bearranged for heating upon the flanges d on all four sides of section B,and on flange D on three sides of section 0, and, in addition thereto,upon the top flange E. Additional sections may be used, if desired. Theash-pit can be easily cleaned out by simply removing the slide H andinserting a small shovel through the opening a.

It will be noticed that by the use of the vertically-sliding stop-pieceH, the stove can be conveniently used in places where it would beimpossible to use a stove having a door as a substitute for thestop-piece H.

Having described my improved stove for domestic and other purposes, whatI claim as new and of my invention, and desire to secure by LettersPatent, is l 1. The combination, with the section A and base-piece B, ofslotted section B and the interposed separate flanged piece A, substantially as shown and described.

2. The combination, with the sections B and O, of the flanged piece 1),dampers m, and smoke-flue F, substantially as and for the purposes setforth.

3. The combination, wit-h the section A provided with flanges 2 and 3,of the reversible slotted rectangular piece I, provided with serratedend pieces 0 0, substantially as and for the purposes set forth.

4. The combination, with the base-piece B, of the inclined bottom G andvertically-sliding stop or damper H, said parts being constructed andrelatively arranged, as and for the purposes set forth.

CHARLES J. PRATT.

\Vi t-nesses E. E. Moolm, Tnos. H. DODGE.

